
OBO Bettermann PVG-C1000K 220 DC Generator Connection Box Type 2 1000V DC 2 MPPT 4 Strings IP66
This is OBO Bettermann’s DC generator connection box, the enclosure that goes between the PV modules and the inverter to gather the strings and protect the DC input from surges. It arrives pre-wired: two Type 2 arresters are already fitted inside, with nothing to assemble.
It serves 2 MPPTs with 2 strings each, four strings in all, up to 1000V DC open-circuit voltage and 41A DC per terminal. The arresters use pluggable varistor cartridges with a built-in disconnection device in a fault-resistant Y circuit to VDE 0100-712: a spent cartridge is swapped without touching the wiring, and an optical indicator tells you when that moment has come. Declared protection level is below 4.0kV, maximum discharge current 40kA at 8/20µs, response time under 25ns.
The enclosure is UV-resistant polycarbonate rated IP66 with IK07 impact resistance: it is built to live outdoors, in sun and rain. The box ships with a cable gland set and a pressure compensation element. One caveat OBO itself raises: where wind, ice, temperature or sun exposure can cause condensation, extra measures may be needed. Installation is a job for a qualified electrician.
Key strengths
Technical specifications
| Feature | Value |
|---|---|
| Product code | OBO-2MPP-DCII-IP66-V2 |
| OBO Bettermann article no. | 5088445 |
| Catalogue designation | PVG-C1000K 220 (OBO Bettermann data) |
| Manufacturer | OBO Bettermann |
| Type | Pre-wired DC generator connection box with surge arresters |
| MPPTs served | 2 |
| Strings per box | 2 per MPPT, 4 in total |
| SPD type | Type 2, class II, pluggable varistor arresters |
| Disconnection device | built in, fault-resistant Y circuit to VDE 0100-712 (50539-12) |
| Maximum voltage Uoc | 1000V DC |
| Protection level Up | below 4.0kV |
| Maximum discharge current Imax (8/20µs) | 40kA (OBO Bettermann data) |
| Response time | below 25ns (OBO Bettermann data) |
| Signalling | optical arrester status indicator (OBO Bettermann data) |
| Arresters pre-installed | 2, with 5 terminals each |
| Terminal cross-section | 0.50mm² to 6.00mm² flexible, 0.50mm² to 10.00mm² rigid (OBO Bettermann data) |
| Maximum current per terminal | 41A DC |
| Enclosure | UV-resistant polycarbonate, suitable for outdoor use |
| Degree of protection | IP66, impact resistance IK07 (OBO Bettermann data) |
| Supplied with | cable gland set and pressure compensation element |
| Standards | EN 61643-11, IEC 61643-11, VDE 0100-712 (50539-12) |
| Weight | about 2.16kg (OBO Bettermann data; the portal states 0.22kg, which is not credible) |